Improvement in side-bar wagons



E. SOPER.

SIDE BAR WAGON. No. 177,291. Patented May 9,1876.

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NvPETERS. PHOTOJJTHOGRAPHER, WASHINGTON. D O.

UNITED STATES PATENT QFFIGE.

EPHRAIM SOPER, NEW YORK, N. Y.

IMPROVEMENT IN SIDE-BAR WAGONS.

Specification forming part of Letters Patent No. 177,291, dated May 9, 1876; application filed November 7, 1874. Y

To all whom it may concern: I

Be it known that I, EPHRAIM SoPER, of New York, in the county of New York and State of New York, have invented a new and to the bars, and also being opposed to the easy and free action of the springs. It is caused by the effect of the lengthening and shortening of the spring as it curves and straightens in working up and down on the rigid joint of the side bar, with the spring continuously twisting the side bar forward and backward. There is also some spring in the side bar, which has a corresponding effect on the spring. These two actions materially in terfere with the elastic functions of both the spring and side bar by changing considerably the measure of their elasticity, the same being varied in the proportion that the spring and side bar are twisted; but the greater objection is the destructive effect 011 the integrity of the fiber of the side bars, which issoon destroyed by the splitting effect of the twisting action. My improved connection for the remedy of these difiiculties is a two-motion joint or coupling, by which each part is free to turn or oscillate on a pivot without twisting the other, the said motions being at right angles to each other, thus corresponding with the arrangement of the spring and side bar.

Figure 1 is a side elevation of the joint and section of the spring. Fig. 2 is also a side elevation of the joint, but in a different plane, and it showsa section of the side bar.

Similar letters of reference indicate corresponding parts.

A is the side bar, and B the spring to which the side bar is coupled, the spring being the means of supporting the side bars, and thereby supporting the body, itself being connected to and supported by the axle or bolster. In this coupling, as now shown, the jaw-piece O has an eye at D, in which the pivot F holds the ears E of the spring B, while the said jawpiece is suitably secured .to the side bar A by pivot L, which passes through the ears of the jaw-piece O and an eye in plate H, which is fastened to the side bar, and said pivots being at right angles to'each other, so that the spring oscillates freely on pivot-F, and the side bar oscillates freely on the pivotL, thus entirely relieving both of torsion.

The coupling maybe constructed in different ways to accomplish the same results, and it is not the particular construction of the coupling that I claim; but,

Having thus described my invention, I claim as new and desire to secure by Letters Patent- A two-motion joint, connecting the side bar and spring of a side-bar wagon, in which the spring and side bar are free to oscillate each in a plane at right angles to the other, and

without subjecting either to torsion, substantially as specified.

EPHRAIM SOPER.

Witnesses T. B. MOSHER, 0. SEDGWICK. 

